Construction of lamps for burning lard



CATE & PUTNAM.

4 Lamp. No. 2.358. Patented Nov. 16, 1841.

l M w Fz d l) (7 a2 a d a UNITED STATES PATENT @FFECE,

N. S. GATE, OF CHARLESTOWN, AND J. H. PUTNAM, OF MALDEN, MASSACHUSETTS.

CONSTRUCTION OF LAMPS FOR BURNING LARD, TALLOW, 86C.

Specification of Letters Patent No. 2,358, dated November 16, 1841.

To all whom z't may concern: part of the conductor), is placed immedi- Be it known that we, NORMAN S. GATE, of ately between the wick tubes 6, 0, and slides Charlestown, and JAMES H. PUTNAM, of up and down in a spring collar (Z surround- Malden, in the county of Middlesex and ing the same and soldered to the screw cap, 45 State of lVJlassachusetts, have invented new 6. The conductor may have a series f, f, f" M and useful Improvements in Lamps for of small holes bored through it as seen in Burning Lard, Tallow, or other Concrete Fig. 2, into which a pointed instrument may Fatty Matters, of which the following is a be inserted to raise or depress the same. or full and exact description, reference being it may have a toothed. rack g, 9, Figs. 3, L, 59 had to the accompanying drawings, which, formed on its edge into which the teeth of a combined with the same, form our specificasmall pinion it, (applied to the screw cap on tion. a short thumb shaft may operate. and

In the same we have set forth the nature thus when the lamp is first lighted the conof our inventions, by which they may be ductor may be elevated into the body of the 55 distinguished from others of'a like characflame, where in one or more seconds it beter, together with such parts or combinacomes sutficiently heated to be depressed tions therein as we claim and for which we into the lard in the lamp, so as to liquidize solicit an exclusive property for fourteen the same. As soon as the lamp becomes hot years to be secured to us by Letters Patent. enough to keep the lard in a fluid state, the 60 Our inventions are represented'in Figures conduct-or may be lowered below the flame, l, 2, 3, i and consist in so arranging the or into such position as to convey a suitable piece of copper which conducts the heat of degree of heat to the lard. the flame to the material to be burned, to Having thus explained our inventions we melt the same, that it may be raised or deshall claim 65 pressed at pleasure. In lamps of this de- The movable metallic conductor, situated scription, the copper conductor has genbetween the wick tubes, and arranged in the erally consisted of a copper wire inserted spring collar as above described, so as to be in the wick tube and extending through and elevated or depressed or adjusted to any debelow the same into the body of the lamp. sirable position with respect to the flame, 70 This latter disposition of the conductor the same being constructed and operated often and most always causes the destrucsubstantially in the manner above set forth. tion of the wick in contact with it, for the In testimony that the foregoing is a true conductor becoming red hot soon, not only description of our said inventions and imburns up the wicking, but so heats the cap provements we have hereto set our signa- 5 of the lamp as tounsolder the wick tubes. tures this fifth day of October in the year In our lamp the conductor a (see Figs. 1 eighteen hundred and forty one. and 2, the former of which is a vertical cross NORMAN S. GATE. section of the lamp, taken through the cen- JAMES H. PUTNI'XM. ter of the wick tubes, and the latter is anlVitnesses: 40 other vertical cross section taken at right R. H. EDDY,

angles to the former through the central EZRA LINCOLN, Jr. 

